1. Professor, Dept. of Civil Engineering and Architecture, Univ. of Foshan, 18 Jiang Wan Rd., Foshan City, Guangdong, China.
2. Associate Professor, Dept. of Building and Construction, City Univ. of Hong Kong, 83 Tat Chee Ave., Kowloon, Hong Kong (corresponding author).
3. Lecturer, Dept. of Building and Construction, City Univ. of Hong Kong, 83 Tat Chee Ave., Kowloon, Hong Kong.